Updates to http and chronos
Updates after review
Merge pull request #32 from Metaswitch/request_update

[Reviewer: Matt] Updates to http and chronos
Fixes to leaks and uninitialized conditions flagged by valgrind
Merge pull request #33 from Metaswitch/sto622-updates

[Reviewer Matt] Fixes to leaks and uninitialized conditions flagged by valgrind
No square brackets are present on IPv6 addresses by the time they're passed to the resolver
Merge pull request #34 from Metaswitch/no_square_brackets

[Reviewer: Mike] No square brackets are present on IPv6 addresses
Temporarily disable DNS-SRV blacklisting
Merge pull request #35 from Metaswitch/no_blacklist

[Reviewer: Matt] Temporarily disable DNS-SRV blacklisting